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By NASA
This NASA/ESA Hubble Space Telescope reveals clouds of gas and dust near the Tarantula Nebula, located in the Large Magellanic Cloud about 160,000 light-years away.ESA/Hubble & NASA, C. Murray The universe is a dusty place, as this NASA/ESA Hubble Space Telescope image featuring swirling clouds of gas and dust near the Tarantula Nebula reveals. Located in the Large Magellanic Cloud about 160,000 light-years away in the constellations Dorado and Mensa, the Tarantula Nebula is the most productive star-forming region in the nearby universe, home to the most massive stars known.
The nebula’s colorful gas clouds hold wispy tendrils and dark clumps of dust. This dust is different from ordinary household dust, which may include bits of soil, skin cells, hair, and even plastic. Cosmic dust is often comprised of carbon or of molecules called silicates, which contain silicon and oxygen. The data in this image was part of an observing program that aims to characterize the properties of cosmic dust in the Large Magellanic Cloud and other nearby galaxies.
Dust plays several important roles in the universe. Even though individual dust grains are incredibly tiny, far smaller than the width of a single human hair, dust grains in disks around young stars clump together to form larger grains and eventually planets. Dust also helps cool clouds of gas so that they can condense into new stars. Dust even plays a role in making new molecules in interstellar space, providing a venue for individual atoms to find each other and bond together in the vastness of space.
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By European Space Agency
The second of the Meteosat Third Generation (MTG) satellites and the first instrument for the Copernicus Sentinel-4 mission are fully integrated and, having completed their functional and environmental tests, they are now ready to embark on their journey to the US for launch this summer.
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By NASA
Explore This Section Science Science Activation Eclipses to Auroras: Eclipse… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 3 min read
Eclipses to Auroras: Eclipse Ambassadors Experience Winter Field School in Alaska
In 2023 and 2024, two eclipses crossed the United States, and the NASA Science Activation program’s Eclipse Ambassadors Off the Path project invited undergraduate students and amateur astronomers to join them as “NASA Partner Eclipse Ambassadors”. This opportunity to partner with NASA, provide solar viewing glasses, and share eclipse knowledge with underserved communities off the central paths involved:
Partnering with an undergraduate/amateur astronomer Taking a 3-week cooperative course (~12 hours coursework) Engaging their communities with eclipse resources by reaching 200+ people These Eclipse Ambassador partnerships allowed participants to grow together as they learned new tools and techniques for explaining eclipses and engaging with the public, and Eclipse Ambassadors are recognized for their commitment to public engagement.
In January 2025, the Eclipse Ambassadors Off the Path project held a week-long Heliophysics Winter Field School (WFS), a culminating Heliophysics Big Year experience for nine undergraduate and graduate Eclipse Ambassadors. The WFS exposed participants to career opportunities and field experience in heliophysics, citizen science, and space physics. The program included expert lectures on space physics, aurora, citizen science, and instrumentation, as well as hands-on learning opportunities with Poker Flat Rocket Range, the Museum of the North, aurora chases, and more. Students not only learned about heliophysics, they also actively participated in citizen science data collection using a variety of instruments, as well as the Aurorasaurus citizen science project app. Interactive panels on career paths helped prepare them to pursue relevant careers.
One participant, Sophia, said, “This experience has only deepened my passion for heliophysics, science communication, and community engagement.” Another participant, Feras, reflected, “Nine brilliant students from across the country joined a week-long program at the University of Alaska Fairbanks’ (UAF) Geophysical Institute, where we attended multiple panels on solar and space physics, spoke to Athabaskan elders on their connection to the auroras, and visited the Poker Flat Research Range to observe the stunning northern lights.”
This undertaking would not have been possible without the coordination, planning, leadership of many. Principal Investigators included Vivian White (Eclipse Ambassadors, Astronomical Society of the Pacific, ASP) and Dr. Elizabeth McDonald (Aurorasaurus, NASA GSFC). Other partners included Lynda McGilvary (Geophysical Institute at UAF), Jen Arseneau (UAF), Shanil Virani (ASP), Andréa Hughes (NASA), and Lindsay Glesener (University of Minnesota), as well as knowledge holders, students, and scientists.
The Eclipse Ambassadors Off the Path project is supported by NASA under cooperative agreement award number 80NSS22M0007 and is part of NASA’s Science Activation Portfolio. To learn more, visit: www.eclipseambassadors.org.
Winter Field School Participants standing under the aurora. Andy Witteman Share
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Last Updated Feb 18, 2025 Editor NASA Science Editorial Team Related Terms
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By NASA
Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Hubble News Archive Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts e-Books Online Activities Lithographs Fact Sheets Posters Hubble on the NASA App Glossary More 35th Anniversary Online Activities 2 min read
Hubble Captures a Cosmic Cloudscape
This NASA/ESA Hubble Space Telescope reveals clouds of gas and dust near the Tarantula Nebula, located in the Large Magellanic Cloud about 160,000 light-years away. ESA/Hubble & NASA, C. Murray
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The universe is a dusty place, as this NASA/ESA Hubble Space Telescope image featuring swirling clouds of gas and dust near the Tarantula Nebula reveals. Located in the Large Magellanic Cloud about 160,000 light-years away in the constellations Dorado and Mensa, the Tarantula Nebula is the most productive star-forming region in the nearby universe, home to the most massive stars known.
The nebula’s colorful gas clouds hold wispy tendrils and dark clumps of dust. This dust is different from ordinary household dust, which may include of bits of soil, skin cells, hair, and even plastic. Cosmic dust is often comprised of carbon or of molecules called silicates, which contain silicon and oxygen. The data in this image was part of an observing program that aims to characterize the properties of cosmic dust in the Large Magellanic Cloud and other nearby galaxies.
Dust plays several important roles in the universe. Even though individual dust grains are incredibly tiny, far smaller than the width of a single human hair, dust grains in disks around young stars clump together to form larger grains and eventually planets. Dust also helps cool clouds of gas so that they can condense into new stars. Dust even plays a role in making new molecules in interstellar space, providing a venue for individual atoms to find each other and bond together in the vastness of space.
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Caldwell 103 / Tarantula Nebula / 30 Doradus
Hubble Studies the Tarantula Nebula’s Outskirts
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Hubble Probes Interior of Tarantula Nebula
Media Contact:
Claire Andreoli (claire.andreoli@nasa.gov)
NASA’s Goddard Space Flight Center, Greenbelt, MD
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Last Updated Feb 13, 2025 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center Related Terms
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By NASA
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NASA’s Curiosity Mars rover captured these drifting noctilucent, or twilight, clouds in a 16-minute recording on Jan. 17. (This looping clip has been speeded up about 480 times.) The white plumes falling out of the clouds are carbon dioxide ice that would evaporate closer to the Martian surface.NASA/JPL-Caltech/MSSS/SSI While the Martian clouds may look like the kind seen in Earth’s skies, they include frozen carbon dioxide, or dry ice.
Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA’s Curiosity rover using its Mastcam — its main set of “eyes.” Taken over 16 minutes on Jan. 17 (the 4,426th Martian day, or sol, of Curiosity’s mission), the images show the latest observations of what are called noctilucent (Latin for “night shining”), or twilight clouds, tinged with color by scattering light from the setting Sun.
Sometimes these clouds even create a rainbow of colors, producing iridescent, or “mother-of-pearl” clouds. Too faint to be seen in daylight, they’re only visible when the clouds are especially high and evening has fallen.
Martian clouds are made of either water ice or, at higher altitudes and lower temperatures, carbon dioxide ice. (Mars’ atmosphere is more than 95% carbon dioxide.) The latter are the only kind of clouds observed at Mars producing iridescence, and they can be seen near the top of the new images at an altitude of around 37 to 50 miles (60 to 80 kilometers). They’re also visible as white plumes falling through the atmosphere, traveling as low as 31 miles (50 kilometers) above the surface before evaporating because of rising temperatures. Appearing briefly at the bottom of the images are water-ice clouds traveling in the opposite direction roughly 31 miles (50 kilometers) above the rover.
Dawn of Twilight Clouds
Twilight clouds were first seen on Mars by NASA’s Pathfinder mission in 1997; Curiosity didn’t spot them until 2019, when it acquired its first-ever images of iridescence in the clouds. This is the fourth Mars year the rover has observed the phenomenon, which occurs during early fall in the southern hemisphere.
Mark Lemmon, an atmospheric scientist with the Space Science Institute in Boulder, Colorado, led a paper summarizing Curiosity’s first two seasons of twilight cloud observations, which published late last year in Geophysical Research Letters. “I’ll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact,” he said. “Now it’s become so predictable that we can plan our shots in advance; the clouds show up at exactly the same time of year.”
Each sighting is an opportunity to learn more about the particle size and growth rate in Martian clouds. That, in turn, provides more information about the planet’s atmosphere.
Cloud Mystery
One big mystery is why twilight clouds made of carbon dioxide ice haven’t been spotted in other locations on Mars. Curiosity, which landed in 2012, is on Mount Sharp in Gale Crater, just south of the Martian equator. Pathfinder landed in Ares Vallis, north of the equator. NASA’s Perseverance rover, located in the northern hemisphere’s Jezero Crater, hasn’t seen any carbon dioxide ice twilight clouds since its 2021 landing. Lemmon and others suspect that certain regions of Mars may be predisposed to forming them.
A possible source of the clouds could be gravity waves, he said, which can cool the atmosphere: “Carbon dioxide was not expected to be condensing into ice here, so something is cooling it to the point that it could happen. But Martian gravity waves are not fully understood and we’re not entirely sure what is causing twilight clouds to form in one place but not another.”
Mastcam’s Partial View
The new twilight clouds appear framed in a partially open circle. That’s because they were taken using one of Mastcam’s two color cameras: the left 34 mm focal length Mastcam, which has a filter wheel that is stuck between positions. Curiosity’s team at NASA’s Jet Propulsion Laboratory in Southern California remains able to use both this camera and the higher-resolution right 100 mm focal length camera for color imaging.
The rover recently wrapped an investigation of a place called Gediz Vallis channel and is on its way to a new location that includes boxwork — fractures formed by groundwater that look like giant spiderwebs when viewed from space.
More recently, Curiosity visited an impact crater nicknamed “Rustic Canyon,” capturing it in images and studying the composition of rocks around it. The crater, 67 feet (20 meters) in diameter, is shallow and has lost much of its rim to erosion, indicating that it likely formed many millions of years ago. One reason Curiosity’s science team studies craters is because the cratering process can unearth long-buried materials that may have better preserved organic molecules than rocks exposed to radiation at the surface. These molecules provide a window into the ancient Martian environment and how it could have supported microbial life billions of years ago, if any ever formed on the Red Planet.
More About Curiosity
Curiosity was built by NASA’s Jet Propulsion Laboratory, which is managed by Caltech in Pasadena, California. JPL leads the mission on behalf of NASA’s Science Mission Directorate in Washington. Malin Space Science Systems in San Diego built and operates Mastcam.
For more about Curiosity, visit:
science.nasa.gov/mission/msl-curiosity
News Media Contacts
Andrew Good
Jet Propulsion Laboratory, Pasadena, Calif.
818-393-2433
andrew.c.good@jpl.nasa.gov
Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov
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Last Updated Feb 11, 2025 Related Terms
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